In this paper we present an analytical approach to evaluate the bit error rate (BER) of OFDM systems subject to carrier frequency offset (CFO) and channel estimation error in Rayleigh flat fading as well as in time and frequency selective fading channels. Based on correct modeling of the correlation between channel estimates and received signals with carrier frequency offset, the bit error rate...

To investigate EDTA-plasma/serum (P/S) differences, we collected paired samples from 25 volunteers and measured total cholesterol (TC), triglyceride (TG) and high-density-lipoprotein cholesterol (HDLC), using the Cobas FARA, Ektachem 700, DuPont Dimension, and Baxter Paramax Analyzers. The mean (SD) P/S ratios for TC, HDLC, and TG concentrations were, respectively: 0.980 (0.0171), 1.063 (0.0704...

In magnetic resonance imaging, precise measurements of longitudinal relaxation time (T1) is crucial to acquire useful information that is applicable to numerous clinical and neuroscience applications. In this work, we investigated the precision of T1 relaxation time as measured using the variable flip angle method with emphasis on the noise propagated from radiofrequency transmit field ([Formul...

Approximate computing has emerged as a circuit design technique that can reduce system power without significantly sacrificing the output quality in error-resilient applications. However, there exists only a few approaches for systematically and efficiently determining the error introduced by approximate hardware units. This paper focuses on the development of error analysis techniques for appr...

Volume 13, Number 4 / December 2011 ORIGINAL ARTICLE Analytical methods for error propagation in planar space–time prisms Tetsuo Kobayashi, Harvey J. Miller and Walied Othman 355-372 ORIGINAL ARTICLE A computationally efficient method for delineating irregularly shaped spatial clusters Juan C. Duque, Jared Aldstadt, Ermilson Velasquez, Jose L. Franco and Alejandro Betancourt 373-391 ORIGINAL AR...

We have calculated analytical expressions for how the bias and variance of the estimators provided by various temporal diierence value estimation algorithms change with ooine updates over trials in absorbing Markov chains using lookup table representations. We illustrate classes of learning curve behavior in various chains, and show the manner in which TD is sensitive to the choice of its step-...

We have calculated analytical expressions for how the bias and variance of the estimators provided by various temporal di erence value estimation algorithms change with o ine updates over trials in absorbing Markov chains using lookup table representations. We illustrate classes of learning curve behavior in various chains, and show the manner in which TD is sensitive to the choice of its steps...